Plumbest Plumbing & Heating in Calgary. With over 20 years of experience in the plumbing industry, Plumbest is a name you can trust. Certified Journeyman Gas Fitter, and Certified Journeyman Plumber, you know that you are getting the expertise that your home deserves. Plumbing should not be left to a jack-of-all trades handyman. It takes the knowledge, tools, and dedication of a real Calgary plumbing contractor to properly, and safely, service your plumbing and heating needs.